27SPA6Up to 16 SEER2Up to 7.8 HSPF2 27VNA3Up to 23 SEER2Up to 9.5 HSPF2 27VNA0Up to 20 SEER2Up to 9.5 HSPF2 27TPA8Up to 18.5 SEER2Up to 8.5 HSPF2 37MUHAUp to 19 SEER2Up to 10.8 HSPF2 37MURAUp to 18.8 SEER2Up to 9.7 HSPF2